bum rap vs j'accuse

bum rap

noun
  • A false accusation, or an injustice, especially one that leads to imprisonment. 

  • An undeservedly unfavorable portrayal or reputation. 

j'accuse

noun
  • An accusation, especially one made publicly. 

How often have the words bum rap and j'accuse occurred in a corpus of books? (source: Google Ngram Viewer )